Bkiggs



J. c. SQUAREBRIGGS. TROLLING LINE SINKERQ APPLICATION FILED MAR, 31. me.

INVENTOR JZ/kes 6. JQUa/Z/j/Wi 5 Patented Nov. 4, 1919.

. where the hooks j NI E STATES PATEN OFICE. 1

mmns csananniamees, or nonr'n VANCOUVER, BRITISH COLUMBIA, CANADA.

TnoLLINe-Lmn SINK-ER.

To all whom it may concern:

Be it known that I, JAMEs C. SQ'UARE- BRIGGS, a citizen of the Dominionof Canada, residing at North Vancouver, in the Province of BritishColumbia, Canada, have invented certain new and useful Improvements inTrolling-Line Sinkers, of which the following is a specification.

This invention relates to a means for taking down a fishing line totherequired depth for deep water fishing, and is designed to supersedethe heavy sinkers at present used for this purpose.

In deep water trolling a heavy sinker is commonly required to counteractthe lifting tendency of the water against the upwardly inclined line asthe same is drawn through the water. These sinkers are so heavy as to beawkward to lift over the side of the boat, and if the movement of theboat is stopped they rapidly carry the line to the bottom get caught onthe rocks and marine weeds. i

It is to avoid these conditions that the sinker, which is the subject ofthis/application, has been devised. 'In it the weight is only sufficientto insurethat it is fully immersed and it is carried down by thereaction: of the water on inclined vanes or fins 30 l projecting fromeach side:

The invention is fully described in the following specification,reference being made to the drawings bywhich it is accompanied, inwhich,

- l3ig11re lis a side elevation showing the sinker in the position ofbalance at the required depth, and

Fig. 2 is a; plan of the same.

In these drawings 2 represents the body."

of the sinker which may be of any suitable material, preferably castiron-.or lead, to the upper side of which the trolling line 9 isconnected adjacent the front end 'at 8. To the underside of the body 2and adjacent the rear end the bait line 11 is connected at 10.'

Secured across the'front end of the body 2 to'project symmetrically fromeach side of it ata slight upward incline beckward is of the body 2 issecured the aftervane 5 which is of the leading vane3. Similarly acrossthe rear end relatively larger area. Secured to'this after vane '5 toproject vertically above and a short distance below :it is an uprightfin 7 the plane of which may be in the plane of Specificationof LettersPatent. Applicationfjfiled March 31; 1919. Serial No. 286,246.

Patented Nov. 4, 19 19.

the axis of the body, as shown in Fig. 2, or may be angled to one sideor the other from that axis as required.

The rear edges of the leading vanes 3 are upwardly turned near theirtips, as at 4, and the corresponding part of the rear vanes 5 aredownwardly turned, as at 6.

As this vaned body is drawn through the water by its trolling line 9'itsweight will initially carry it below the surface, and the reaction ofthe. water on the incline of the front vane 3 will'tenol to tilt thefront end ofthe body 2 downward, while the downwardly turned angle ofthe rear vane 5 will tend to tilt the after end upward. The

. sinker is thus drawn down deeper in the water against theupwa/rd pullof the line 9, and this downward movement will. continue until thetension of the trolling line 9 and the drag of the bait line 11, balancethe water pressures reacting on the vanes 3 and 5.

The vertical vane 7 preserves the flight ofthe sinker against lateraldeviation and invention, I hereby declare that what I claim as new anddesire to be protected in by Letters Patent, is:

1. A trolling line sinker, comprising the combination with an elongatedbody having provision adjacent one end for connectingit to the'trollingline and adjacent the other end for connecting the bait line to it,vanes secured to the body'to project from each side and angled inrelation; to a horizontal plane through they axis of the-body to directthe leading end of the body downward by the pressure ofthe water on thevanes.

2, A" trolling line sinker, comprising the combination with an elongatedbody having provision adjacent one end for connecting it to the trollingline and adjacent the other end for connecting the'baitlineto it, ofavane secured to each end of the body to symmetrically project'from eachside, the

forward vane being inclined upward andthe after vane downward from'theforward edges backward.

' 3. Atrolling line sinker, comprising the combination with an elongatedbody havlng provision adjacent one end for connectin it to the trollingline 'and adjacent the pt er end for connecting the bait line to it, ofa vane secured to each end of the body to symmetrically project fromeach side, the forward vane being inclined upward and the after vanedownward from the forward edges backward, and a vertically disposed Vaneadjacent the after end. v 4. A trolling line sinker, comprising thecombination with an elongated body having provision adjacent one end forconnection of it to the trolling line and adjacent the opposite end forconnectionof the bait line to it, vanes projectingfrom'each side andangled to direct the leading end of the body downward with the reactionof the water, and a vertically disposed vane for maintaining it againstlateral deviation. 5'. A trollin line sinker, comprising the combinationwlth an elongated 'body having provision adjacent one end for connectionI 'downward. H

In testlmonywhereof I afiix my signature. 60

of: it to the trolling line and adjacent the opposite end for connectionof the bait line to it, a vane secured across the leading end to projectsymmetrically from each side, the

leading edge of the vane being in a straight horizontal line and thesurface of the vane angled upward and backward therefrom, a similar vaneof relatively larger area secured to and projecting-across the afterend, the

surface of which is inclined downward backward and a vertical vanesecured to and pro- 1 jecting upwarctand backward from the rear vane. 40

6. A trollingline sinker, comprising the combination with an elongatedbody havin provision adjacent one end-for connection 0 it to thetrolling line and adjacent the opposite end for connection of the baitline to it, a vane secured across the leading end to projectsymmetrically from each side, the leading edge of the vane being in astraight horizontal-line and the surface of thevane angled upward andbackward therefrom, a similar vane of relatively larger area, secured toand projecting across the after end, the surface of which is inclineddownward backward, and vertical vane secured to and projectingnpward andbackward from the rear vane, the after edge of the tips of the leadingvane-bein turned upward and v the same parts of thea ter vane beingturned a I JAMES C. SQUAREBRIGGS.

